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QUESTION
A researcher is evaluating the effect of a new growth hormone. It is known that regular adult rats weigh an average of 400 grams, with a standard...
A researcher is evaluating the effect of a new growth hormone. It is known that regular adult rats weigh an average of 400 grams, with a standard deviation of 20 grams.
How probable is it that a randomly selected rat weighs less than 418 grams?
